/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/NiagaraNodeFunctionCall.h
Called when a pin is renamed.
virtual void OnPinRenamed ( [UEdGraphPin](API\Runtime\Engine\EdGraph\UEdGraphPin) * RenamedPin, const [FString](API\Runtime\Core\Containers\FString) & OldPinName )